What credential registers actually publish
The reason this lab exists in the form it does is visible in one table. A public page per licence is close to universal. A usable bulk export exists in under half, and where it exists it is often gated, stale, paid for or shaped like a document. A signed file does not exist anywhere.
54 registers, 37 jurisdictions, 43 trades, each checked by hand against the authority’s own pages. The index is deliberately narrow: a row appears only where somebody has actually looked. Last checked 10 November 2026.
The reason for the grades, in one picture. Counted across every row in the index, where only an unqualified yes counts: a partial, gated or paid export counts as no.
Grades
| Grade | Meaning |
|---|---|
| A | Authority publishes a signed file |
| B | Bulk machine-readable export, unsigned |
| C | Public page per licence, stable address, no bulk export |
| D | Public search form only, no stable address |
| E | No public lookup |
A grade describes a register, never the authority behind it or the quality of its supervision. An authority can run an excellent register and still grade D because it is a search form.
The index
Best grade first, then by jurisdiction. Every row links to a page carrying the authority, the source address and what was found, in words. Archived copies with their digests are the next thing this index needs and it does not have them yet, which is recorded here rather than implied away.